Adjustable shore



G. W. MEYER AND C. A. ROOS. ADJUSTABLE SHORE. APPLICATION FILED NOV. 28,1919.

1,395,649. Patented Nov.. 1, 1921.

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UNITED STATES PATENT OFFICE.

GEORGE W. MEYER AND CHARLES A. IR-OOS, OLE CINCINNATI, OHIO.

ADJUSTABLE SHORE.

Specification of Letters Patent.

Patented Nov. 1, 1921.

Application filed November 28, 1919. Serial No. 341,047. I

To all whom it may concern:

Be it known that we, GEORGE W. MEYER and CHARLES A. Boos, citizens ofthe United States, residing at 3356 Gano avenue and 2832 Linwood road,Cincinnati, respectively, in the county of Hamilton and State of Ohio,have invented new and useful Improvements in Adjustable Shores, of whichthe following is a specification.

Our invention relates to what are commonly known as shores or extensibleand adjustable supports used in shoring up any work requiring temporarysupport, as in building construction of various kinds; and is intendedto-simplify and improve the construction, lessen the relative weightwith a view to ease of manipulation and facility of use andtransportation, and assure integrity of action under load; besideslessening the cost of construction, use and transportation inquantities.

To this end our invention consists in the shore constructed andoperative as hereinafter described and illustrated in the accompanyingdrawing herewith submitted and forming part of this specification.

In the accompanying drawings illustra ing the preferred form of ourinvention.

Figure 1 is a front, and Fig. 2 a partial side elevation, respectively,of our improved shore;

Fig. 3 and 4 are horizontal cross sections in planes A A and B B,respectively, of Fig. 2.

Referring now to the said drawings, a designates the relatively fixed orstationary member of the shore and Z) the slidingmember which by itsadjustable sliding attachment to the fixed member a; may be extended tooverlap the same .and thus vary and extend the length of the shore asmay be desired to any distance permitted by the structural limits.

In the present illustration the member a is shown as a tube section ofiron or steel and the sliding member 6 as a wooden beamlongitudinallyrecessed at one side to approximately half the dimeter ofthe member a which is nested in the trough thus formed.

At or near its upper end the tubular member a carries a guide'yoke dfixed thereto and extending completely around the member b. At the lowerend of the member I) is attached at each side what may be termed anadjustable shoe 0 consisting of a strong iron or steel plate having anaperture the plate 0 to cant over in relation to the 1 tubular member a,as indicated in Fig. 2 of the drawing. Downward pressure upon the memberZ) causes the lower edge of the aperture to bite into the surface of thetubular member a principally at the side indicated at w, and also in alesser degree at the opposite side and edge, and the relation of theparts is such that the greater the pressure the more secure the holding.

In order to hold the plate 0 in locked relations with the tubular member6 against any tendency to displacement, we attach a set screw f by meansof a cleat c to'the outer end of the plate a, as shown in Fig. 2, sothat the screw bears against the outer side ofthe member a holding theplate 0 in its canted position shown in the figure.

In order to hold the plate in its right angled relation with the membera when it is desired to readjust its longitudinalrelation to the member6, a small piece or spacer h is employed attached to the bottom ofmember to contact with the upper face of the plate 0. When thus used andadjusted, the set screw 7 may be again used to maintain this relation.

The head and foot of the device are provided with suitable blocksenlarging the area of contact in parallel planes. These are indicated atj and 7c of the drawing but require no further description.

In operation the device in its telescoped position of parts is placedwhere desired (upon a horizontal foundation as nearly as may be) underthe object to be supported and the sliding member is raised to therequired height and the locking member 0 made to engage the tubularorstationary member. The weight of or pressure against the supportedobject will keep the parts in locked position. To insure this againstaccidental displacement, the set screw f is tightened.

These operations are reversed by loosening the set screw and settingfree the looking member 0 by tapping downward at its outer end, causingthe sliding member I) to drop.

While we have here shown its preferred form as required, in which thesliding member is in a partially telescoped relation with the stationarymember, yet our invention may be carried out with tubular members onefully telescoped within the other.

WVe claim as our invention and desire to secure by Letters Patent of theUnited States 1. In a shoring device the combination of a relativelystationary element, a member telescopically adjustable thereon, and anintegral metallic plate pivoted to one of said members and extendingacross horizontally and embracing the other member in a perforation ofthe plate corresponding with the contour of the embraced member and in asliding fit such that upon canting said plate, the curbs or edges of theperforation are clamped to the embraced element at the contact side andthe outer side simultaneously.

2. Ina shoring device of the character indicated, a tubular base member;an adjustable extension member partially surrounding said base member intelescopic relations; and a perforated plate pivotally secured at itsrear end to the adjustable mem-.

ber and embracing the tubular member in its perforation in such cantingrelation as to permit free movement of the adjustable member upward butengaging automatically by gravity to prevent intermovement in the otherdirection by canting action seating the upper and lower edges of theperforation at opposite sides of the base member.

3. An extensible shoring device of the character indicated embodying incombination a tubular member partially telescoped in and guided upon oneface of an inclosing member, and a canting lock' or shoe having a fiatplate below the inclosing member embracing the inclosed member, andprovided with side extensions extending upward at opposite sides of theinclosing member to a pivotal connectiontherewith from side to side. Y 7

4. In an extensible shoreof-the character indicated, in combination witha base memberfand an extension member relatively movable thereon, aself-operatingcanting lock pivotally secured to the extension member andembracing the base member, and a retaining screw upon said lock andoperating upon the base member to increase the canting angle of the lockto maintain its engagement against accidental displacement. I y Y 5. Inan extensible shore of the character indicated, in combination with twomembers relatively extensible one upon the other, a self operatingcanting lock pivotally secured to one 'and embracing the other member,and a set screw upon said lock operating to hold the canting lock, inengaging position as desired and a spacer attached to the bottom of theinclosing member to hold the canting lock out of en-v gagement andpermit thefree sliding intermovement of the extension member whendesired.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

GEORGE W. MEYER. CHARLES a a-00s.

